Both Airbus and Boeing now offer aircraft that appear capable of flying non-stop commercial flights from Sydney to London - the "Holy Grail" for Australian carrier Qantas Airways. As long as oil prices don't go much higher than around US$70 (NZ$100) per barrel, the 20-hour flight can be financially viable, and could be on schedules within five years, aviation experts say. Airbus has increased the range of its A350-900ULR to 9700 nautical miles (17,960 km) from the 8700 nautical miles announced when it sold the plane to Singapore Airlines in 2015 for delivery next year, a spokesman said.​via Stuff.co.nz